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| author | Kent Overstreet <kent.overstreet@linux.dev> | 2022-12-13 22:43:03 +0300 |
|---|---|---|
| committer | Kent Overstreet <kent.overstreet@linux.dev> | 2023-10-23 00:09:48 +0300 |
| commit | 14d7d61fac9c151a270c6ef6f969993eae9f1bbf (patch) | |
| tree | 9634e430e3cda3bfb93d7b090108a8331635eb0b /fs/bcachefs/btree_gc.c | |
| parent | 1ae40fd816ca6f52b46a8d74f799f8a85ecb92ad (diff) | |
| download | linux-14d7d61fac9c151a270c6ef6f969993eae9f1bbf.tar.xz | |
bcachefs: Fix btree_gc when multiple passes required
We weren't resetting filesystem & device usage when restarting gc, which
was spotted when free bucket counters overflowed - whoops.
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
Diffstat (limited to 'fs/bcachefs/btree_gc.c')
| -rw-r--r-- | fs/bcachefs/btree_gc.c | 25 |
1 files changed, 21 insertions, 4 deletions
diff --git a/fs/bcachefs/btree_gc.c b/fs/bcachefs/btree_gc.c index 2defa811f48f..d4a0e0a716c5 100644 --- a/fs/bcachefs/btree_gc.c +++ b/fs/bcachefs/btree_gc.c @@ -1282,8 +1282,7 @@ fsck_err: return ret; } -static int bch2_gc_start(struct bch_fs *c, - bool metadata_only) +static int bch2_gc_start(struct bch_fs *c) { struct bch_dev *ca = NULL; unsigned i; @@ -1298,7 +1297,6 @@ static int bch2_gc_start(struct bch_fs *c, } for_each_member_device(ca, c, i) { - BUG_ON(ca->buckets_gc); BUG_ON(ca->usage_gc); ca->usage_gc = alloc_percpu(struct bch_dev_usage); @@ -1315,6 +1313,22 @@ static int bch2_gc_start(struct bch_fs *c, return 0; } +static int bch2_gc_reset(struct bch_fs *c) +{ + struct bch_dev *ca; + unsigned i; + + for_each_member_device(ca, c, i) { + free_percpu(ca->usage_gc); + ca->usage_gc = NULL; + } + + free_percpu(c->usage_gc); + c->usage_gc = NULL; + + return bch2_gc_start(c); +} + /* returns true if not equal */ static inline bool bch2_alloc_v4_cmp(struct bch_alloc_v4 l, struct bch_alloc_v4 r) @@ -1761,7 +1775,7 @@ int bch2_gc(struct bch_fs *c, bool initial, bool metadata_only) bch2_btree_interior_updates_flush(c); - ret = bch2_gc_start(c, metadata_only) ?: + ret = bch2_gc_start(c) ?: bch2_gc_alloc_start(c, metadata_only) ?: bch2_gc_reflink_start(c, metadata_only); if (ret) @@ -1822,6 +1836,9 @@ again: bch2_gc_stripes_reset(c, metadata_only); bch2_gc_alloc_reset(c, metadata_only); bch2_gc_reflink_reset(c, metadata_only); + ret = bch2_gc_reset(c); + if (ret) + goto out; /* flush fsck errors, reset counters */ bch2_flush_fsck_errs(c); |